Poor quality ps -> jpeg conversion with newer imagemagick

[opoplawski]

With IM 6.2.8.0 on Centos 5.4 I'm able to convert following ps file:

http://www.cora.nwra.com/~orion/im/ke.ps

to jpeg and get decent lines and text quality:



Using a newer versions 6.5.1.2 and 6.5.8.10 on Fedora 11/12 I get lousy lines and text quality:



Other tests show png -> jpeg with poor quality, ppm -> jpeg look fine. Interestingly, with recent IM, convert uses the pngalpha device for gs conversion, and pnmraw with version 6.2.8.0.

[magick]

Try this

• convert -density 400 ke.ps.eps -resize 25% -rotate 90 -flatten ke.png

[opoplawski]

A reasonable work around I suppose, but still not sure why the behavior changed in the first place.